以多晶片封裝LED為LCTV背光源之背光機構之研究｜國立中央大學博碩士論文系統

簡易檢索 / 詳目顯示

回結果列表

研究生：	林孟佳 Menh-Chia Lin
論文名稱：	以多晶片封裝LED為LCTV背光源之背光機構之研究 The Design for Backlight Module of LCTV by Using Multi-Chip LEDs
指導教授：	楊宗勳 Tsung-Hsun Yang
口試委員:
學位類別：	碩士 Master
系所名稱：	理學院 - 光電科學與工程學系 Department of Optics and Photonics
畢業學年度：	96
語文別：	中文
論文頁數：	80
中文關鍵詞：	背光機構
外文關鍵詞：	backlight unit
相關次數：	點閱：10 下載：0
分享至:	分享至facebook 分享至twitter

查詢本校圖書館目錄查詢臺灣博碩士論文知識加值系統勘誤回報

在本論文中，主要目的是利用多晶片封裝LED作為LCTV背光機構之光源，並且設計了一薄型化的混光腔體。過程中，利用BSDF分佈及蒙地卡羅光追跡法成功地建立混光腔體中所使用的擴散板之散射模型。最後，我們製作了一台採用熱插拔式多晶片LED為背光源之42吋LCTV，並對其作一系列實驗分析及問題討論。

In the thesis, we use multi-color LEDs to replace CCFLs of an LCTV and design a thin backlight unit. In the design process, we incorporate the BSDF model with Monte Carol ray tracing to establish the scattering model of the diffuser in the backlight module, and successfully simulate the transmitted and reflected lights by the diffuser. Finally, we fabricate the backlight unit for a 42-inch LCTV by using multi-color LEDs with hot-plug package. The optical performance of the LCTV with the LED backlight unit is analyzed.

摘要                                                 Ⅰ
英文摘要                                                 Ⅱ
誌謝                                                     Ⅲ
目錄                                                     Ⅳ
圖索引                                                   Ⅶ
表索引                                                   XI
第一章 緒論                                               1
1.1 高功率LED 介紹                                    1
1.2 LED 背光模組介紹                                   5
1.3 大綱                                               9
第二章 基本原理                                          10
2.1 光度學(photometry)                                 10
2.1.1 簡介                                         10
2.1.2 基本原理                                     12
2.2 色度學(colorimetry)                                 16
2.2.1 色覺                                         16
2.2.2 色彩空間說明                                 19
2.3	均勻性                                            24
第三章 散射片散射模型建立                                26
3.1	散射片之模擬                               26
3.2	BSDF之定義                                      27
3.3 實驗與模擬分析                                    28
3.3.1 穿透光散射光強度分布量測                    28
3.3.2 擴散片散射模型驗證                          31
3.3.3 反射光強度分布量測                          34
3.4	BSDF散射模型建立                                 38
第四章 RGB LED LCTV的之設計與量測                     40
4.1	簡介                                              40
4.1.1 液晶面板簡介                                 40
4.1.2 增亮膜簡介                                   42
4.1.3 42吋LCD電視規格                             43
4.2	RGB LED量測                                     45
4.3	LED封裝透鏡設計                                  51
4.3.1 設計動機                                     51
4.3.2 LED特性量測                                  54
4.4 均勻性之實驗                                      55
4.5 RGB LED背光模組之輝度管理                      61
4.6	背光模組之製作及量測                              63
4.6.1 背光模組之製作                               63
4.6.2 背光模組之量測                               65
第五章 結論                                              70
參考文獻                                                 71
中英文名詞對照表                                         75

                                

[1] D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O.
Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz,
“Illumination with solid state lighting technology, ” IEEE J. Select.
Topics Quantum Electron. 8, 310-320 (2002).
[2] A. Zukauskas, M. S. Shur, and R. Caska, Introduction to Solid-State
Lighting, John Wiley & Sons, New York, (2002).
[3] Philips Lumileds Luxeon Company, Application Brief AB07, Lumen
Maintenance of White Luxeon Power Light Sources.
[4] Philips Lumileds Lighting Company, http://www.lumileds.com/.
[5] Y. Martynov, H. Konijn, N. Pfeffer, S. Kuppens, and W. Timmers,
“High-efficiency slim LED backlight system with mixing lightguide, ” SID Intl. Symp. Digest Tech. Papers, 1259-1561 (2003).
[6] R. West, H. Kobijn, W. Sillevis-Smitt, S. Kuppens, N. Pfeffer, Y.
Martynov, T. Yagi, S. Eberle, G. Harbers, T. W. Tan, and C. E. Chan,
“High Brightness Direct LED Backlight for LCD-TV, ” SID Intl. Symp. Digest Tech. Papers, 1262-1265 (2003).
[7] W. Folkerts, “LED Backlighting Concepts with High Flux LEDs, ” SID Intl. Symp. Digest Tech. Papers, 1226-1229 (2004).
[8] G. Harbers, and C. G. A. Hoelen, “High Performance LCD Backlight using High Itensity Red, Green and Blue Light Emitting Diodes, ” SID Intl. Symp. Digest Tech. Papers, 702-706 (2001).
[9] G. Harbers, W. Timmers, and W. Sillevis-Smitt, “LED Backlight for LCD-HDTV, ” Proc. 2nd International Display Manufacturing Conference, 181-184 (2002).
[10] A. Perduijn, S. de Krijger, J. Claessens, N. Kaito, T. Yagi, S. T. Hsu,
M. Sakakibara, T. Ito, and S. Okada, “Light Output Feedback Solution for
RGB LED Backlight Applications, ” SID Intl. Symp. Diest Tech. Papers,
1254-1257 (2003).
[11] S. Sakai, A. Mori, K. Ishiguchi, K. Kobayashi, T. Kokogawa, T.
Sakamoto, and T. Yoneda, “A Thin LED Backlight System with High
Efficiency for Backlighting 22-in. TFT-LCDs, ” SID Intl. Symp. Digest
Tech. Papers, 1218-1221 (2004).
[12] Philips Lumileds Luxeon Company, Application Brief AB17, Benefits
of Lumileds Solid State Lighting Solutions vs. Conventional Lighting.
[13] Philips Lumileds Luxeon Company, Application Showcase AS14,
Luxeon DCC for LCD Backlighting.
[14] F. Yamada, H. Nakamura, Y. Sakaguchi, and Y. Taira,
“Color-Sequential LCD Based on OCB with LED backlight, ” SID Intl. Symp. Digest Tech. Papers, 1180-1183 (2000).
[15] W. Cheng, “Power Minimization of LED Backlight in a Color Sequential
Display, ” SID Intl. Symp. Digest Tech. Papers, 1384-1387 (2005).
[16] H. Otsuki, et al., “18.1-inch XGA TFT-LCD with wide color reproduction
using high power LED-Backlighting, ” SID Intl. Symp. Digest Tech. Papers, 1154-1157 (2002).
[17] H. Sugiura, et al., “Prototype of a Wide Gamut Monitor Adopting an
LED-Backlight LCD Panel, ” SID Intl. Symp. Digest Tech. Papers,
1266-1269 (2003).
[18] “Spectral luminous efficiency functions based upon brightness matching
for monochromatic point sources, 2°, and 10° fields, ” CIE Publication No. 75 (1988a).
[19] “CIE 1988 2° spectral luminous efficiency functions of photopic vision, ”
CIE Publication No. 86 (1988b).
[20] Colour & Vision database, http://cvision.ucsd.edu/index.htm .
[21] R. W. G. Hunt, Measuring Colour, Ellis Horwood, London, (1995).
[22] G. Wyszecki, and W. S. Stiles, Color Science, John Wiley & Sons, ,
New York, (2000).
[23] V. N. Mahajan, Optical Imaging and Aberrations, Part Ι Ray Geometrical
Optics, SPIE PRESS, Washington, (1998).
[24] R. W. Boyd, Radiometry and the Detection of Optical Radiation, John
Wiley & Sons, New York, (1983).
[25] 大田登, 基礎色彩再現工程, 全華科技圖書, 台北市, (2004).
[26] The Macula Center, http://www.maculacenter.com/ .
[27] “Standard on Colorimetric Observers, ” CIE S002 (1986b).
[28] Chinese Graphic Arts Net, http://www.cgan.com .
[29] VESA, http://www.vesa.org/.
[30] C. C. Sun, I. Moreno, S. H. Chung, W. T. Chien, C. T. Hsieh, and T. H. Yang, “Brightness management in a direct LED backlight for LCD TVs, ” J. Soc. Inf. Display 16, 519 (2008).
[31] Breault Research Organization Inc., ASAP Technical Guide, Scattering.
[32] Breault Research Organization, http://www.bro.com/ .
[33] R. Lu, Q. Hong, Z. Ge, and S. T. Wu, “Color shift reduction of a
multi-domain IPS-LCD using RGB-LED backlight, ” OPTICS EXPRESS
14, 6243 (2006).
[34] 3M, http://www.3m.com/ .
[32] Proton, http://www.proton.com.tw/ .
[36] NeoPac Optoelectronics, Inc., http://www.neopac-opto.com/.
[37] SphereOptics, http://www.sphereoptics.com/ .

簡易檢索 / 詳目顯示

相關論文